Barrel-forming machine.



E. P. EVERBTT @L G. W. NORTON.

BARREL FORMING MACHINE. APPLICATION FILED JULY 12. 1907.

Patented Jan. 25, 1910.

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V//TA/ESSES MAM E. P. .EVERETT G. W. NORTON.

BARREL FORMING MACHINE.

APPLICATION FILED JULY 12. 1907.

Patented Jan. 25, 1910.

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W/TNESSES A TTOH/VE YS rtrrti it ERNEST 13. EVERIE'JDD GEORGE W. NRTON,Oli? NlEW YONLK, N. Yr

lftlftlltELFORMINGr MACHINE.

dpecicaton of Letters Patent. @attempted difatti, 25 ftfllllltll.,

Application tiled .'l'uly 12, 1907. Serial No. tldt't i To all whom itmay concern.'

lie it known that we, ERNEST P. Evnnn'rr and Gnoizon W. Noirion, bothcitizens of the United States, and residents of New York, Long llslandCity, itstoria, borough of Queens, inthe county of Queens and tltate ofNew Yorlr, have invented a new and vimproved Barrel-Forming Machine, ofwhich the following is a full, clear, and eX- act description.

@or invention relates to the manufacture of barrels and especially tobarrels s uch as special form particularly adapting them for forming thebilge or curvature, and the rolls are constructed and arranged in suchaway that the velocity of the faces of the rails on pppositc sides of theweb atany particular point is the same.

The invention consists in the construction and combination ofparts to bemore fullyI described hereinafter and forth in the claims.

Reference is to be had to the accompanydrawings forming a part Vof thisspecifi` cation, in which similar. characters of reference indicatecorresponding parts in all the particularly set figures.

lliv'gure 1 is a side elevation showing diagraminatically the rolls bymeans r of which the material is formed; lfig. 2 is a' front elevationof the rolls shown in lFig. 1; Fig. 3 is a cross section showing theform of the web when treated with our rolls; lFig. l is a longitudinalcentral section through a bar! rel which may be formed With our machine;and lt1 ig. 5 is a longitudinal section through a barrel of modifiedconstruct-ion, but which is also made according to this process.

Before proceeding to a detailed description of the process and the stepsby means of which it is practiced, it will facilitate the disclosure ofthe invention to state at the outset that, in the manufacture of paperor pulp webs, great difficulty has been experienced in the operation ofmachinery for dis-A tending or bilging the web. Attempts to accomplishthis end have generally resulted in tearing or rupturing the web at thepoint or line where the bilge is to be formed.` lin practicing theprocess, We employ' rolls having a special form, which enable the middleportion of the web to be bilged or bellied without rupturing ortearing.The finished web of paper or pulp having a bilge as de scribed, isadmirably adapted for forming barrels because when formed into a roll,the bilge of the paper becomesthe bilge of the barrel or cash?. i

Referring more particularly to the parts,

and especially to Figs. 1 and 2, 1 represents a` frame upon which aplurality of guide rolls Q are provided, which receive the web 3 fromthe paper machine. rlhese rolls 2 are adapted to be .driven continuouslyin a forward direction by means of the gear wheels l1 which arecontinuously driven, and which'mesh with gear wheels 5 carried by theshafts of the rolls 2. At the end oppo siteto the rolls 2, the frame 1is formed with several arches oi bows 6. ln these arches the formingrolls 7 are supported. The arches are three i'n number, the one adjacentto the roll 2 being represented by the numeral 6a, the next oneby thenumeral 6b and the upper one by the numeral 6. rlhe rolls 7 arearrangeddn sets-V carried respectively on the bows G. The arrangement ofeach of .these sets of rolls isV indicated in Fig 2. Each set comprisesa main roll v2. Cooperating with each of the main rolls 8, we provideresser rolls 11 and 12. The rolls ES have bi ged or convex faces and therolls l1 and 12 have concave faces. rlFhe con titi titl

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cave faces of the rolls 111 and l2 are held substantially'against thefaces of the rolls hows 6 have the least curvature, while those carriedin the bovvs 6 have the greatest curvature. The rolls carried in theintervner illustrated in Fig. 1. In this way the wet pulp as it passesover the rolls, is subjected to a stretching and pressing action. Inorder to prevent any tendency for the rolls. to tear the pulp, weconstruct the rolls so that the .peripheral speed of the presser rollsand they main rolls at any one point substantially is the same,' as isillustrated in Fig. 2, where the diameters are indicated by the lines aand b running from a common point on the main roll and one ot thepresser rolls. lVe make the diameter a equal to the diameter It thediameters a and b were maintained exactly equal to each other at allpoints of the surface of the rolls, the meeting faces of the rolls wouldbe straight lines and the rolls would be of conical form. The meetingline between the two cylinders would .then bisect the angle between theaxes of the convex cylinder and the corresponding convex cylinder. Byvarying the diameters a; and b slightly from anexact equality we areenabled to give the cylinders a slightly curved meeting line which hasthe general direction of and substantially conforms in position to thestraight line bisecting the angle between the axes ot the cylinders. Inthis way it will be evident that there substantially no sliding orfriction between the web and either of the rolls. As a result of passingthe web through the rolls, it becomes bileed so that its cross sectionwill have the term represented in Fig. 3; that is, it is stretched,bulged or bilged toward its middle line.

In order to dry the pulp web as it is passing through the forming rolls,we provide steam pipe connections 15 which enable steam to be directedthrough the rolls in such a way thatthey are maintained highly heated.

The main rolls 8 are provided near their ends with grooves 16 whichproduce the croze -of the barrel. In forming a barrel from' the iinisheddried web, a sheet is cut ini-the web and is simply formed into a roll,the longitudinal meetlng edges of the sheet out of which the barrel isformed, being simply l. ped and riveted or batted together and) rivetedto a butt strip. In this way a barrel 17 may be formed, as indicated inFig. 4. The inner side of the body 18 of the barrel will have a croze 19which facilitates the fastening of the heads 20 in the barrel as shown.

Instead of making the barrel as illustrated in Fig. 4, we may form thebody ot the barrel by wrapping the bilgcd paper upon itself so that thebarrel presents a plurality of layers 21 when viewed in section as inFig. 5. In this form of the barrel, the heads are formed with annulargrooves 25 which receive the ends of the body, and

rotation inclined with respect to the axis of rotation of said convexroller.

In testimony whereof we have signed our names to this specification inthe presence ot' two subscribing witnesses.

ERNEST P. EVERETT. GEORGE W. NORTON.

lVitnesses F. D. AMMEN, JOHN P. Davis.

